Mechanical movement and regulating device



'7 Sept. 11, 1928.

G. A. BOETTCHER MECHANICAL MOVEMENT AND REGULAT ING DEVICE Filed March 20, 1926 4 Sheets-Sheet l MECHANICAL MOVEMENT AND REGULATING DEVICE Filed March 20, 1926 4 sheets sheet 2 LE fi (gs wanton Magma 4Sheets-Sheet 5 Sept. 11, 1928.

- G. A. BOETTCHER MECHANICAL MOVEMENT AND REGULATING DEVICE I Filed March 20, 1926 E EZ-g a x ame/Mo a I W :ll-E. l

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Sept 11, 1928. 1,683,650

G. A. BOETTCHER MECHANICAL MOVEMENT AND REGULATING DEVICE Filed March 20, 1926 4 Sheets-Sheet 4 VEJYTOR @QQ-A/Q m.

Patented Sept. 11, 1928.

UNITED STAT N GUSTAV A. BOETTCHER, OF JAMAICA, NEW YORK, ASSIGNOR TO 'MUTLTI-NEEDLE ENGI- NEERING- CORPORATION, OF JAMAICA, NEW YORK.

MECHANICAL MOVEMENT AN LD REGULATING DEVICE.

This invention relates to mechanicalmovements and regulating apparatus, and particularlyto the class waereina shiftable gear carriage or cradle is adapted to'he moved to throw rotary members mounted therein into or out of mesh with a gear mounted in spaced relation to said carriage.

. The main object of my invention is to provide a reliable mechanical device of the charactermentioned which is adapted for use as a valve regulator in gas and oil burning apparatus and systems, and also in refrigeration apparatus and compressed air and vacuum lines, i

Another object is to provide a device of thisv character which may he ,d *iven continuously in one direction while heingshifb able to deliver rotation in the same or in the opposite direction. a

A further object is to provide an apparatus which may he shiftahle to deliver rotary movement in one direction one shift po- Other objects and the adaptability and ad' vantages of the invention will presently apnrarinthe specification. a In the accompanying drawings Fig.1 is a view of an apparatus embodying the main features of my invention the shift inu'ineans having heen omitted to clarify the Vl6\V.. v v y Fig. 2 is aside view of the whole apparatus including the shifting means and presenting the whole as an operativeunit.

' Fig; 3 ispa front end viewof 1.

Fig. t is a plan view of the gear carriage of the previous views. r

Fig. 5 is graphic viewofjthe teethofthe rotary rack member of the former view.

Fig. 6 is a graphic view of the teeth of the gears of the first views, showing the special formof the teeth. i 3

Fig. 7 is a rear end view of a modification of the carriage shown in Fig. 4.

Fig. 8 is a modification. of

. Application filed March 20, 1926. Serial No; 96,353.

9 is a modification of Figs. 5and 8. Fig- 1.0 is a rack or gear chart of teeth adapted. to mesh with the teeth offFig. 10.,

and is ammliiication of the Fig. 6.

'lhroiurhout the views, the samereferenc'e numerals indicate the same or duplicate parts.

In rotary regulatingdevices of various detion with equal certainty in neutral adjustment position. i I

In the practise of my invention, a pair of corresponding frames 1 and 2 are secured together by a pair of similar plates .3 and 4. A shaft 5 is rotatably mounted in these plates and a rocking member or carriage 6 is fixed on the shafto, while providing hearings in. its upper portion for a pairof shafts 16 and 1.8. These shafts areeachprovided with a rotarystep rack 10 and 11, respectively, and upon their forward eXtremitiesw-ithgears 14- aud 15 which mesh with each other, and will therefore cause opposite movementsiof the shafts and rotaryracks. The carriage is provided with a bridge between the racks which has. an ordinary rack 7 cuttherein of the same pitch as the rotary members.

q A 'transvc1'se shaft. 30 is mounted in :tho upper portions of frames 1 and 2 Ind a gear 8 is mounted on the shaft and adapted to mesh with rack 7. If the carriage should he rocked to either side so that the rotary memher'lOor member 11 should be directly beneath gear 8, thc latter would mesh with the member beneath it. But inorder to provide the intermediate central position as the normal neutral and locked position, a hub which are attached to the lower extremities of the fingers and to frames 1 and 2. If the shaft 5 is partly rotated clockwiseby any suitable means, the stop projection 24 will force the upper portion of finger 22 away from the hub 23 against the resistance of.

; stop or limit for the fingers, and the latter,

thus limited, and by virtue of the tension of their springs will tend to hold the projection 24 in a central position, and thereby the carriage, in normal neutral position. Iteturning to the clockwise movement of shaft 5 as 56811111 Fig. 3, the gear 8 is here in mesh with step rack 10. The teeth 37 are exactly at a right angle to the shaft except at one point along the rack, and there the diagonal steps at 39 suddenly turn each one of the teeth up one step to the next above. In similar fashin,'the teeth 40 in rack 11 are stepped up one space each by diagonal steps at 38, the racks 10'and 11 being identical in this respect. Fig. shows the teeth laid out in chart form of the entire periphery of one of the racks and clearly illustrates this point. But now, in order to have a spur gear mesh properly with the teeth 37 in rack 10, its teeth 9-9 must be practically diamond shaped. The teeth may be turned to provide transverse faces 41 and 44 to contact with the straight sides of the rackteeth, and will then have the diagonal faces 43 and 42 to contact with the diagonal teeth at 39. In the sixth view this is pointed out in chart. form. a

The effect/of this form of rotary step rack' lStO cause a-movement of one tooth ahead on gearS for each revolution of the rack. And, whereas rackszlt) and 11 are identical in form, even to the same direction of bias on the diagonalsteps, yet, owing to the fact that they are adapted to revolve in opposite directions-when in motion, rack 10 will step the. gear 8 ahead or forward, while-the rack 11 will step it backward. Of course, in the intermediate position, when the gear meshes with the stationary rack 7, it is locked against rotation and no movementis possible.

It isclear that any means now known for shifting gears or analogous devices to this invention may beused for this purpose with my device withoutdeparting from the invention. v

Now, in order to communieatethe movement of the externaldrive shaft 33 which tremity of shaft 16, thus allowing the carriage to shift. The shaft 16 may thus rotate at all'times, and likewise shaft 18, the shifting of the carriage to one side causing the gear 8 to mesh with rack 10 and if shifted rack teeth is great compared with the bias steps and furthermore providesopportunities for shifting the carriage to neutral position or to the other side. In this connection it may be well to mention that rack 7 has its teeth placed directly in line with those of the rotary racks, although the diagonal steps may not be used as shifting points or contacts. Therefore, toavoid shifting at such positions, the gear 14 is provided with a crescent cam 17 and also the projecting free extremity of the shaft 16. In conformity with this structure, a projecting lug 20 is secured to frame 2 and is provided with a stud which is adapted to pass through a slot 35 on gear 14. The location of this cam 17 relative to the steps at 39 on the rack 10 is such that when the steps in rotation approach theteeth of gear 8, then the cam approaches stud 35 to prevent contact between 8 and 10 by shift of the carriage until the steps have passed. On the other hand, if the gear 8 is actually in mesh with rack 10 before the diagonal steps approach the gear, then the cam will catch thestud 35 in the channel 35 and will hold the stud in position and thereby the carriage until the steps have been passed. and have imparted movement to the gear. The same principle applies in similar manner to cam 19 on gear 15, for the stud 36 is'here adapted to ride in the channel 36 or outside the cam.

In some cases. the relative movement of shaft 30 may be too rapid in comparison with drive shaft 33, and this is remedied by introducing a second transverse shaft 31. which is supported by frames 1 and 2 and hears a large spur gear 13 on its extremity. A pinion 12 is secured upon the adjacent extremity of shaft 30 and meshes with gear 13, and when the apparatus is in active operation, the gradual rotation of shaft 31 is the final result, as the stepping action of gear 8 is then reduced and refined by this geared rednction. .The direction of rotation is under immediate control, and when no longer desired, the neutral position automatically holdsthe gain made. I

In the eighth view, the rack teeth 58 in. the chart have two stages of bias steps at 56 and 57. But in the ninth view, the chart 59 has its teeth 60 broken by a stage of bias steps at 61, straight teeth 62, andagain by bias stepsin return position at 63. This reversal of the angles requires in the gear iJU ' ferent speeds and directions of rotation.

increase one bias stage, while the-other diagonal faces 67 are adaptedtoengage the return biassteps on the chart gear.

'Manifestly,instead of the present gear carriage-6 which provides fortwo opposite di-' rections ofmovement, a different and broader carriage 46 maybe used. This carriage has three shafts'52,53 and 54 which have secured thereon the rotary members orgears 49, 50

and '51, respectively. These members are all p in mesh in series, while on their shaftsmay be mounted rotarv step racks similar to 10, or

worms at '2',r 53 and 54", while they may also be of different diameters to'produce dif- The gears 49, and 51 may also be of different diameters to produce differentrotational speeds for their shaft-s. The stationary racks 4:7 and 48 may serve as intermediate stops for the gear adapted to mesh with the rotary members 52'', 53 and 54. The carriage may in some formsof my device be furnished with a larger numberof rotary members so that the carriage itself becomes practically a drum with shi'ftable rotating members all around it, the members beingsimilar or different to produce various, similaror opposite edects and speedsof-rotation as a resul Having now fi'illydescribedmy invention,

I claim:

1. A regulating device comprising a -f1'ame,a pivotshaft mounted in the frame and a carriage secured upon said shaft within said frame, a-pair of shafts mounted in sa d carriage-and provided each with a gear in meshwith the other, a rotary toothed mem- 2. A regulating device comprising aframe,

a pivot shaft mounted insaidfr ame and a carriage gupon saidpivot shaft, a series of substantially similar shafts mounted on said carriage and provided each with a gear mesh ing with theothersto provide simultaneous rotation of all said shafts, rotary toothed members secured upon said carriage shafts and means to rotatesaid shafts, said rotary toothed members being designed to provide various rotational effects, and a'delivery shaft mounted upon said frame and provided with a gear adapted to mesh individually with any one of said rotary toothed members in various positions of said carriage. g

3. A regulating device comprising a frame,

a pivot shaft in said frame, a carriage on said shaft, a second shaft mounted on said car riage bearing a rotary toothed member, means to rotate said second shaft, a stationary rack upon said carriage bcsides said ro tary mei'nber, a third shaft mounted upon said frame providcdwith a gear adapted to mesh with either said rack orsaidrotary member and means to shift said carriage to mesh either said rack or said rotary member with said gear, i

r 4:. A regulating device com 'arisinga frame,

a rocking carriage mounted in said'frame having a pair of shaftstherein, gears mountterior means to rotate said shafts, a pair of similar rotar members mounted on said" shiifts having peripheral teeth substantially in line with the direction of rotation of the members and broken by a series of similar diagonal steps connecting each tooth withthe next above, a delivery shaft'onsaid frame and a gear on said shaft adapted to mesh with eitherv of said rotary members and. means to shift-said carriage to mesh one or the other of said members with said gear.

5. A mechanical movement comprising a frame, a pivot shaft, a rocking carriage mounted on said shaft, a pair of shafts mounted in said carriage, gears upon thee):- treinities thereof in mesh with eachbther and intermediate the extremities a pair of rotary members having each a series of teeth parallel with the peripheryjo'f the member with a series of diagonal steps connecting each tooth with one adjacent thereto, a stationary rack mounted upon said carriage beed on said shaftsin mesh with GtICliOtllBlQfiX- tween said rotary members, a delivery shaft mounted upon aforesaid frame and a gear upon said shaft adapted to mesh with said members and said rack individually upon shifting of said carriageto meshingpositions and means to shift said carriage.

6. A mechanical device comprising a frame, a pivot shaft movably mount-ed therein, a carriage secured withinthe frame upon said shaft provided with afpair of: shafts geared together, a rear motor shelf upon said pivot shaftexterior to saidframe adapt:

ed to shift in unison with said carriage, a

motor being mounted on the shelf and connected to one of said pair of-carriagc borne shafts, means to shift said carriage and shelf, and *a delivery shaft, secured to said frame having a gear mounted thereon adapted to mesh with rotary members on said shafts.

7, A mechanical movement comprising a frame, a pivot shaft mounted therein and a rocking carriage secured on said shaft with in the frame, means to normally hold said carriage and the pivot shaft in intermediate neutral position comprising a collar on said llU shafthaving a radial projection and a pair of fingers pivoted to said frame on either side of said collar and formed to partly envelop the same and having projections adapted to lie along said radial collar pro-- lit) all

jectiomand means to hold said fingers against said collar including a spring secured to each of said fingers and to said frame.

8. In. a .mechanical device including a frame andv ashaft mounted therein, a carriage mounted on the shaft including a pair of end walls, an enveloping wall connecting the bottom edges of said end walls and part of the side edges thereof, bearings on one end wall and corresponding bearings on the other end wall and a straight bridge member comieeting said end walls between said bearings.

-9. In a mechanical movement, a frame having'a pivotshaft, a rocking carriage mounted thereon, a second shaft on said carriage having a rotary member, and a cam on said shaft, means to shift said carriage and means to lo tate said second shaft,and a contact member upon said frame adapted to obstruct said cam to move the same to one side or the other of said projection in one position of said second shaftwhen in motion to restrict shifting of said carriage until the cam has passed said obstructive projection. v

10. In a mechanical device a frame having a pivot shaft mounted therein, a carriage mounted on, said shaft and provided witha shaft thereon, a rotary member thereon hav ing a series of similar teeth parallel with the periphery of the member broken by diagonal steps connecting each tooth with the next and arranged in a row parallel with the axis of the member, a gear mounted on said frame adapted to mesh with said rotary member, and means to prevent movement of said carriage when said diagonal steps pass said gear comprising a cam mounted upon one extremity of said carriage borne shaft and a projection upon said frameadapted to pass on either side of said cam upon'rotation ofsaid rotary member. I t

11. A-. mechanical device comprising a f ame having a pivot shaft mounted therein, a carriage secured upon said sha it within the frame and bearing a pair of shafts, a pair of gears on said shafts in mesh with each other, rotary members upon said shafts having generallystraight transverse teeth connected to each other by diagonal steps, a gear adapted to mesh with said members individually when the carriage isshifted to a position therefor, andmeans to prevent all movement of said carriage when said diagonal steps in rotation pass said gear including a cam on each of said pair of meshing gears and a pair of corresponding projections upon said frame adapted to pass within or outside said cams during rotation of said members.

12. In a mechanical device having a frame a pivot shaft located thereon, a rocking member secured to said shaft, a transverse shaft upon said frame and a gear mounted on said second shaft in a plane parallel with said first shaft, anda rack mounted on said rocking member adapted to be swung into engagement with said gear to brake the same. and to be swung out of engagement with the gear to release the same. j

13. In a mechanical device including a frame, a pivot shaft mounted in said frame and a carriage secured upon said shaft comprising a body portion, a pair of forward and I rear bearings upon the respective forward and rea'r extremities of the carriage, and a rack connecting said forward bearings with said rear bearings located between said bearings and parallel with the pivot shaft.

14. In a mechanical device having a frame, a pivot shaft and a carriage mounted thereon comprising a carriage body, a pair of adjacent bearings secured upon one extremity of the body, a pair of corresponding bearings secured upon the other extremity of the body, a

bridge bearing a rack located between said first pair and said second pair of hearings to connect both pairs and arranged parallel relative to the aforesaid pivot shaft.

15. A. mechanical device comprising a frame, a pivot shaft in said frame, a carriage upon said pivot shaft bearing a rotary member, means to rotate said carriage borne shaft and member, an intermediate delivery shaft mounted upon said frame having a gear secured thereon adapted to mesh with said ro tary member, a pinion on said intermediate shaft, a final delivery shaft also mounted on said frame with a gear mounted thereon in mesh with said pinion, and means to swing said carriage to throw said rotary member into or out of mesh with said first gear.

In testimony whereof, I, Gns'rAv A. Bon'rromen have signed my name to this specifica tion, this seventeenth day of March, 1926.

GUSTAV A. BoEr'roI-IER.

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